442004002406 has 32 divisors (see below), whose sum is σ = 714321248256. Its totient is φ = 204524892000.

The previous prime is 442004002381. The next prime is 442004002417. The reversal of 442004002406 is 604200400244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6269291 + ... + 6339401.

It is an arithmetic number, because the mean of its divisors is an integer number (22322539008).

Almost surely, 2^442004002406 is an apocalyptic number.

442004002406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

442004002406 is a deficient number, since it is larger than the sum of its proper divisors (272317245850).

442004002406 is a wasteful number, since it uses less digits than its factorization.

442004002406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74588.

The product of its (nonzero) digits is 6144, while the sum is 26.

The spelling of 442004002406 in words is "four hundred forty-two billion, four million, two thousand, four hundred six".